Writing ISO file to USBI don't know if it matters in this case, but one thing you are doing wrong is running mkfs on the whole disk, instead of a partition. USB sticks, like hard disks, usually need to be partitioned and then you put a filesystem in the partition.

I can read from hard disk, but I can't mount it read onlyThe fact that the device has the .01 extension indicates that you have the controller set in IDE emulation mode and it is pretending the sata disk is an IDE slave drive. This prevents proper error diagnosis. Going into the bios and putting the controller into AHCI mode should at least get you better, proper, SATA error messages.

Apr15

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Make fan come on soonerThat is to say, that generally fan control is done in hardware and is outside of control for the os.

Can I mount half an ext4 partitionWhat do you mean "migrated"? If it was raid0, then you only have every other block of data if one of two drives failed, which is useless. If it was just concatenated drives, then you may be able to recover some of it.